Analysis of carbon and oxygen stable isotopes in carbonate rocks by the laser micro-sampling technique-中国Betway体育网页登陆

摘要 Theanalysisofstableisotopesofcarbonandoxygenindifferentcarbonaterocksbythephosphoricacidmethodisnoteasierthanthatbythelasersamplingmethoddevelopedinrecentyears,whichopticallyfocuseslaserbeamswithsufficientenergyonamicroareaofathinsectioninavacuumsampleboxviamicroscope.CO2producedbyheatingdecompositionofcarbonatewaspurifiedbythevacuumsystem,andthestableisotopicvaluesofcarbonandoxygenwerecalculatedandanalyzedonamassspectrometer.Thispaperadoptedthelasermicro-samplingtechniquetoanalyzethestableisotopesofcarbonandoxygenindolomite,carbonatecement,stromatoliteanddifferentformsofdawsonite(donbassite).Resultsindicatedthatthelasermicro-samplingmethodiseffectiveinanalyzingcarbonatecompositionandcouldbeaconvincingproofforjustificationoncarbonatecompositionanalysis.

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Analysis of carbon and oxygen stable isotopes in carbonate rocks by the laser micro-sampling technique

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